trip·o·li 
(trĭpə-lē)
(trĭpə-lē)n. pl. trip·o·lis
A porous, lightweight, siliceous sedimentary rock composed of the shells of diatoms or radiolarians or of finely weathered chert, used as an abrasive and a polish.
[French, probably after Tripoli, Lebanon.]
- respirable
- respiration
- respirational
- respirator
- respiratory
- respiratory acidosis
- respiratory alkalosis
- respiratory distress syndrome
- respiratory enzyme
- respiratory failure
- respiratory pigment
- respiratory quotient
- respiratory syncytial virus
- respiratory system
- respiratory therapist
- respiratory therapy
- respire
- respirometer
- respirometric
- respirometry
- respite
- resplendence
- resplendency
- resplendent
- resplendently